`(-A)^(-1)` is always equal to (where `A` is nth-order square matrix) `(-A)^(-1)` b. `-A^(-1)` c. `(-1)^nA^(-1)` d. none of these

(-A)^(-1) is always equal to (where A is nth-order square matrix) a. (-A)^(-1) b. -A^(-1) c. (-1)^nA^(-1) d. none of these

(-A)^(-1) is always equal to (where A is nth-order square matrix) a. (-A)^(-1) b. -A^(-1) c. (-1)^nA^(-1) d. none of these

(-A)^(-1) is always equal to (where A is nth- order square matrix) (-A)^(-1) b.-A^(-1) c.(-1)^(n)A^(-1) d.none of these

If A is an orthogonal matrix then A^(-1) equals A^(T) b.A c.A^(2) d.none of these

If for the matrix A ,\ A^3=I , then A^(-1)= A^2 (b) A^3 (c) A (d) none of these

If for the matrix A ,\ A^3=I , then A^(-1)= (a) A^2 (b) A^3 (c) A (d) none of these

Let A be an nth-order square matrix and B be its adjoint, then |A B+K I_n| is (where K is a scalar quantity) a. (|A|+K)^(n-2) b. (|A|+K)^n c. (|A|+K)^(n-1) d. none of these

Let A be an nth-order square matrix and B be its adjoint, then |A B+K I_n| is (where K is a scalar quantity) (|A|+K)^(n-2) b. (|A|+K)^n c. (|A|+K)^(n-1) d. none of these

Let A be an nth-order square matrix and B be its adjoint, then |A B+K I_n| is (where K is a scalar quantity) a. (|A|+K)^(n-2) b. (|A|+K)^n c. (|A|+K)^(n-1) d. none of these

Let A be an nth-order square matrix and B be its adjoint, then |A B+K I_n| is (where K is a scalar quantity) (|A|+K)^(n-2) b. (|A|+)K^n c. (|A|+K)^(n-1) d. none of these